Whistle



FIG. 1 is a perspective view of a whistle showing my new design;

FIG. 2 is a side elevational view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a sectional view taken along line 7--7 of FIG. 3;

FIG. 8 is a perspective view, shown in open condition for clarity of illustration. 

The ornamental design for a whistle, as shown and described. 